Home / 20,849.59-28,771.32-11,416.33

Finding the Fourth Proportional to 20,849.59, 28,771.32 and 11,416.33

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Solution

The fourth proportional to 20,849.59, 28,771.32 and 11,416.33 is: 15,753.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.59 : 28,771.32 = 11,416.33 : x
  2. Step 2: Convert to fraction form
    20,849.59/28,771.32 = 11,416.33/x
  3. Step 3: Cross multiply
    20,849.59x = 28,771.32 × 11,416.33
  4. Step 4: Simplify right side
    20,849.59x = 328,462,883.66
  5. Step 5: Solve for x
    x = 328,462,883.66/20,849.59
  6. Step 6: Final answer
    x = 15,753.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.